Question 1

What is the primary function of parathyroid hormone (PTH) in the body?

Accepted Answer

Regulates calcium levels in the blood

Answer

Stimulates insulin production

Answer

Increases phosphate absorption

Answer

Regulates potassium excretion

Question 2

Which gland is primarily responsible for the secretion of parathyroid hormone (PTH)?

Accepted Answer

Parathyroid glands

Answer

Pituitary gland

Answer

Thyroid gland

Answer

Adrenal gland

Question 3

What condition is characterized by abnormally high levels of parathyroid hormone (PTH)?

Accepted Answer

Primary hyperparathyroidism

Answer

Hypoparathyroidism

Answer

Secondary hyperparathyroidism

Answer

Pseudohypoparathyroidism

Question 4

Which of the following effects is NOT caused by parathyroid hormone (PTH)?

Accepted Answer

Increases renal excretion of calcium

Answer

Stimulates bone resorption

Answer

Decreases renal excretion of phosphate

Answer

Increases intestinal calcium absorption

Question 5

How does parathyroid hormone (PTH) affect phosphate levels in the blood?

Accepted Answer

Decreases phosphate reabsorption in the kidneys

Answer

Increases phosphate absorption in the intestines

Answer

Increases phosphate reabsorption in the kidneys

Answer

Stimulates phosphate release from bones

Question 6

What triggers the secretion of parathyroid hormone (PTH)?

Accepted Answer

Low blood calcium levels

Answer

High blood glucose levels

Answer

High blood calcium levels

Answer

Low blood potassium levels

Question 7

Which hormone works antagonistically to parathyroid hormone (PTH) to help regulate calcium levels in the body?

Accepted Answer

Calcitonin

Answer

Cortisol

Answer

Glucagon

Answer

Insulin

Question 8

Which of the following is a common symptom of hyperparathyroidism due to elevated levels of parathyroid hormone (PTH)?

Accepted Answer

Kidney stones

Answer

Increased appetite

Answer

Weight gain

Answer

Hair loss

Question 9

What is the primary effect of parathyroid hormone (PTH) on osteoclast activity?

Accepted Answer

Stimulates osteoclast activity

Answer

Inhibits osteoclast activity

Answer

Has no effect on osteoclast activity

Answer

Stimulates osteoblast activity

Question 10

What effect does parathyroid hormone (PTH) have on the kidneys regarding calcium?

Accepted Answer

Increases renal tubular reabsorption of calcium

Answer

Decreases renal tubular reabsorption of calcium

Answer

Increases renal excretion of calcium

Answer

Inhibits calcium absorption

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